diff --git a/services/travelmux/src/api/v2/plan.rs b/services/travelmux/src/api/v2/plan.rs
index 6acbfad0f..160396b2c 100644
--- a/services/travelmux/src/api/v2/plan.rs
+++ b/services/travelmux/src/api/v2/plan.rs
@@ -235,7 +235,7 @@ pub struct Maneuver {
     pub travel_type: String,
     pub r#type: u64,
     pub verbal_post_transition_instruction: Option<String>,
-    pub verbal_pre_transition_instruction: String,
+    pub verbal_pre_transition_instruction: Option<String>,
     pub verbal_succinct_transition_instruction: Option<String>,
 }
 
diff --git a/services/travelmux/src/api/v3/plan.rs b/services/travelmux/src/api/v3/plan.rs
index 5d7a2a130..9ae166fb3 100644
--- a/services/travelmux/src/api/v3/plan.rs
+++ b/services/travelmux/src/api/v3/plan.rs
@@ -342,7 +342,7 @@ pub struct Maneuver {
     pub travel_type: String,
     pub r#type: u64,
     pub verbal_post_transition_instruction: Option<String>,
-    pub verbal_pre_transition_instruction: String,
+    pub verbal_pre_transition_instruction: Option<String>,
     pub verbal_succinct_transition_instruction: Option<String>,
 }
 
diff --git a/services/travelmux/src/valhalla/valhalla_api.rs b/services/travelmux/src/valhalla/valhalla_api.rs
index 8d7bb7e6c..f00ad3f1b 100644
--- a/services/travelmux/src/valhalla/valhalla_api.rs
+++ b/services/travelmux/src/valhalla/valhalla_api.rs
@@ -73,6 +73,7 @@ pub struct Summary {
     pub extra: HashMap<String, serde_json::Value>,
 }
 
+// CLEANUP: rename to LonLat to match their field spelling?
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 pub struct LngLat {
     pub lat: f64,
@@ -105,7 +106,20 @@ pub struct Maneuver {
     pub travel_type: String,
     pub r#type: u64,
     pub verbal_post_transition_instruction: Option<String>,
-    pub verbal_pre_transition_instruction: String,
+    // Usually, but not always, present - e.g. missing from:
+    //     {
+    //       "type": 39,
+    //       "instruction": "Take the elevator.",
+    //       "time": 21.176,
+    //       "length": 0.018,
+    //       "cost": 21.176,
+    //       "begin_shape_index": 291,
+    //       "end_shape_index": 293,
+    //       "rough": true,
+    //       "travel_mode": "pedestrian",
+    //       "travel_type": "foot"
+    //     },
+    pub verbal_pre_transition_instruction: Option<String>,
     pub verbal_succinct_transition_instruction: Option<String>,
 }